From: dave.martin@linaro.org (Dave Martin)
To: linux-arm-kernel@lists.infradead.org
Subject: [Xen-devel] [PATCH] arm: introduce a DTS for Xen unprivileged virtual machines
Date: Thu, 20 Sep 2012 12:21:02 +0100 [thread overview]
Message-ID: <20120920112102.GD2117@linaro.org> (raw)
In-Reply-To: <505AF3E5.1050306@citrix.com>
On Thu, Sep 20, 2012 at 11:45:57AM +0100, David Vrabel wrote:
> On 19/09/12 18:44, Stefano Stabellini wrote:
> > --- /dev/null
> > +++ b/arch/arm/boot/dts/vexpress-xenvm-4.2.dts
>
> Does this make sense? There is no fixed configuration for VMs.
>
> Is the intention to pass a DTS to the toolstack for it to create the VM
> with the appropriate amount of memory and peripheral mapped to the right
> place etc? Or is the toolstack going to create the VM and generate the
> DTB from (e.g.,) an xl VM configuration file.
>
> > +
> > + hypervisor {
> > + compatible = "xen,xen-4.2", "xen,xen";
> > + reg = <0xb0000000 0x20000>;
> > + interrupts = <1 15 0xf08>;
> > + };
>
> This node needs to be generated by the toolstack as only it knows what
> ABI the hypervisor has.
That's a good point: the same applies to the command line. The toolstack
knows where the console and root device should be etc.: the kernel itself
shouldn't have static defaults for those.
Cheers
---Dave
WARNING: multiple messages have this Message-ID (diff)
From: Dave Martin <dave.martin@linaro.org>
To: David Vrabel <david.vrabel@citrix.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
xen-devel@lists.xensource.com, Ian.Campbell@citrix.com,
Pawel Moll <pawel.moll@arm.com>,
konrad.wilk@oracle.com, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [Xen-devel] [PATCH] arm: introduce a DTS for Xen unprivileged virtual machines
Date: Thu, 20 Sep 2012 12:21:02 +0100 [thread overview]
Message-ID: <20120920112102.GD2117@linaro.org> (raw)
In-Reply-To: <505AF3E5.1050306@citrix.com>
On Thu, Sep 20, 2012 at 11:45:57AM +0100, David Vrabel wrote:
> On 19/09/12 18:44, Stefano Stabellini wrote:
> > --- /dev/null
> > +++ b/arch/arm/boot/dts/vexpress-xenvm-4.2.dts
>
> Does this make sense? There is no fixed configuration for VMs.
>
> Is the intention to pass a DTS to the toolstack for it to create the VM
> with the appropriate amount of memory and peripheral mapped to the right
> place etc? Or is the toolstack going to create the VM and generate the
> DTB from (e.g.,) an xl VM configuration file.
>
> > +
> > + hypervisor {
> > + compatible = "xen,xen-4.2", "xen,xen";
> > + reg = <0xb0000000 0x20000>;
> > + interrupts = <1 15 0xf08>;
> > + };
>
> This node needs to be generated by the toolstack as only it knows what
> ABI the hypervisor has.
That's a good point: the same applies to the command line. The toolstack
knows where the console and root device should be etc.: the kernel itself
shouldn't have static defaults for those.
Cheers
---Dave
next prev parent reply other threads:[~2012-09-20 11:21 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-19 17:44 [PATCH] arm: introduce a DTS for Xen unprivileged virtual machines Stefano Stabellini
2012-09-19 17:44 ` Stefano Stabellini
2012-09-20 10:06 ` Pawel Moll
2012-09-20 10:06 ` Pawel Moll
2012-09-20 11:18 ` Dave Martin
2012-09-20 11:18 ` Dave Martin
2012-09-20 12:02 ` Stefano Stabellini
2012-09-20 12:02 ` Stefano Stabellini
2012-09-20 21:29 ` Konrad Rzeszutek Wilk
2012-09-20 21:29 ` Konrad Rzeszutek Wilk
2012-09-21 11:17 ` Stefano Stabellini
2012-09-21 11:17 ` Stefano Stabellini
2012-09-20 11:39 ` Stefano Stabellini
2012-09-20 11:39 ` Stefano Stabellini
2012-09-20 11:55 ` Pawel Moll
2012-09-20 11:55 ` Pawel Moll
2012-09-20 12:15 ` Stefano Stabellini
2012-09-20 12:15 ` Stefano Stabellini
2012-09-20 12:15 ` Stefano Stabellini
2012-09-20 12:28 ` Marc Zyngier
2012-09-20 12:28 ` Marc Zyngier
2012-09-20 13:30 ` Ian Campbell
2012-09-20 13:30 ` Ian Campbell
2012-09-20 13:50 ` Marc Zyngier
2012-09-20 13:50 ` Marc Zyngier
2012-09-20 10:17 ` Ian Campbell
2012-09-20 10:17 ` Ian Campbell
2012-09-20 11:56 ` Stefano Stabellini
2012-09-20 11:56 ` Stefano Stabellini
2012-09-20 12:18 ` Ian Campbell
2012-09-20 12:18 ` Ian Campbell
2012-09-20 12:39 ` Stefano Stabellini
2012-09-20 12:39 ` Stefano Stabellini
2012-09-20 13:16 ` Ian Campbell
2012-09-20 13:16 ` Ian Campbell
2012-09-20 13:27 ` Arnd Bergmann
2012-09-20 13:27 ` Arnd Bergmann
2012-09-20 14:11 ` Stefano Stabellini
2012-09-20 14:11 ` Stefano Stabellini
2012-09-20 14:24 ` Pawel Moll
2012-09-20 14:24 ` Pawel Moll
2012-09-20 14:24 ` Pawel Moll
2012-09-20 10:45 ` [Xen-devel] " David Vrabel
2012-09-20 10:45 ` David Vrabel
2012-09-20 10:45 ` David Vrabel
2012-09-20 11:21 ` Dave Martin [this message]
2012-09-20 11:21 ` Dave Martin
2012-09-20 12:04 ` Stefano Stabellini
2012-09-20 12:04 ` Stefano Stabellini
2012-09-20 12:57 ` Dave Martin
2012-09-20 12:57 ` Dave Martin
2012-09-20 12:00 ` Stefano Stabellini
2012-09-20 12:00 ` Stefano Stabellini
2012-09-20 20:26 ` Rob Herring
2012-09-20 20:26 ` Rob Herring
2012-09-21 11:14 ` Stefano Stabellini
2012-09-21 11:14 ` Stefano Stabellini
2012-09-21 11:14 ` Stefano Stabellini
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